Vehicle warning sign



FIG. 1 is a front elevation view of the warning sign;

FIG. 2 is a top plan view of the sign;

FIG. 3 is a bottom plan view of the sign;

FIG. 4 is a left side elevation view of the sign;

FIG. 5 is a right side elevation view of the sign; and,

FIG. 6 is a rear elevation view of the warning sign. 

CLAIM We claim the ornamental design for a vehicle warning sign, substantially as shown and described. 